Here's one that's going around: From WND:
China rocks the world with missile that circled globe before dropping on target.
OK kiddies, here's a clue. Go on Wickipedia, and look up "Silbervogel" which the Nazis looked into back in 1942 as a method to bomb the U.S. by traveling at hypersonic speeds, bouncing off the stratosphere several times, and landing in Japan.
Terrifying new superweapon, indeed.